package com.example.javafx.accordion;

import javafx.application.Application;
import javafx.beans.value.ObservableValue;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Accordion;
import javafx.scene.control.Button;
import javafx.scene.control.TitledPane;
import javafx.stage.Stage;

/**
 * 手风琴事件
 */
public class Main_1 extends Application {
    @Override
    public void start(Stage primaryStage) throws Exception {

        Group g = new Group();
        Scene scene = new Scene(g,550,250);

        TitledPane t1 = new TitledPane("T1",new Button("B1"));
        TitledPane t2 = new TitledPane("T2",new Button("B2"));
        TitledPane t3 = new TitledPane("T3",new Button("B3"));
        Accordion accordion = new Accordion();
        accordion.getPanes().addAll(t1,t2,t3);

        accordion.expandedPaneProperty()
                .addListener((ObservableValue<? extends TitledPane> ov, TitledPane old_val, TitledPane new_val)->{
                    if(new_val!=null){
                        System.out.println(accordion.getExpandedPane().getText());
                    }
        });
        g.getChildren().add(accordion);
        primaryStage.setScene(scene);
        primaryStage.show();
    }

    public static void main(String[] args) {
        launch(args);
    }
}
